Dumbo (1941)

As the proccesion for the circus is coming through the streets, a hippo is pulling an organ, and at the base of the organ tubes there was a tri-circle Mickey, upside down.
REPORTED: Amy Disneymaniac Duggan 03 JAN 99

Soon after Casey Junior the Train is finally loaded and starts to run, it goes behind the sandrocks which cover the whole screen. Pause those rocks and try to find Mickey! But don't look for an ordinary three-circles scheme; this Hidden Mickey is not just a silouette; it's coloured, and you can distinguish ears, nose, cheeks, etc.
REPORTED: Jakub 16 DEC 01